Machine for making brushes.



G. KLEEMANN.

MAGHINB POR MAKING BRUSHES.

APPLICATION FILED AUG. 29, 1911.

Patented Jan. 6, 1914.

6 SHEETS-SHEBT 1.

mneses G. KLEBMANN.

MACHINE P0P. MAKING BRUSHES.

APPLICATION FILED AUG. 29, 1911.

Patented Jan. 6, 1914i.

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8 SHEETS-SHEET 2.

G. KLEEMANN.

MACHINE FOR MAKING BRUSHES.

APPLICATION FILED 111111.29, 1911.

Patented Jan. 6, 1914.

6 SHEETS-SHEET 3.

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G. KLEEMANN.

MACHINE POR MAKING BRUSHES.

APPLICATION FILED AUG. 29, 1911.

Patented Jan. 6, 1914.

6 SHEETS-SHEET 4.

W1' i 1165,56 5 QW@ u l G. KLEEMAN.

MACHINE FOR MAKING BRUSHES.

APPLICATION FILED AUG. 29, 1911.

Patented Jan. 6, 1914.

6 SHEETS-SHEET 5.

G. KLBEMANN.

MACHINE PoR MAKING BRUSHES.

APPLICATION FILED AUG. Z9, 1911.

Patented Jan. 6, 1914.

6 SHEET S-SHEIET B.

n 1MM w mm ww D T m @Mm MMA AC Q 4canone KLEEMANN, or STUTTGART, GERMANY. y

MACHINE FOR MAKING BRUSHES.

Specification ofLetters Patent.

Patented Jan. e, 191.4..

i Application filed August 29, 1911. serial No. 646,578.

' Stuttgart., in the Kingdom of Wurtteniberg,

I devices.

Germany, have invented an Improved Machine for Making Brushes; and I do hereby declare the tolle-wing to be a full, clear, and exact description of the invention, such-as will enable others skilled in the art to which it appertains tomake and use the same.

This 'invention relates to machines for automatically drawing tufts of brush maternal into brush blocks, and has for its object to provide a machine which will automatically and quickly `tix thetufts in the brush 1n a reliable and eflicient manner.

In the accompanying drawing Figure 1 l is a side view of the new' machine with brush in section and the material feeding device omitted. F ig. 2is a plan view of the Inachine. Fig. 3 shows the device for feeding the material, that is the brush material, while Fig. 4 is a' plan view. Fig. 51s a side elevation of the clamping and tension devlce in the working position. Fig. 6 shows a sectional sideyiew of a clamping device for holding fast the end of the wire. Figs. 7 and 8 show in side View the initial and final positions of a protective cap. Figs. 9 and 10 explain .in two different views the operatlon ot' the spreading device'. Fig. 11 shows the rear view of a brush and indicatesthe course of the wire. Fig. 12 is a front elevation ot the tutt dividing device, while Fig. 13

is a side elevation. Fig. 14 shows on a larger scale and in section the dividing and feeding Figs. 15 and! 16 show a plan view ofthe pliers in open and shut position. Figs. 17 and 18 explain in partially sectionalgside elevation the operation of the pliers. 19 and 20 show frontv elevation and lateral section of the conveye belt with the defiectahle catch pinsfwhile Figs. 21 and. 22

45'; represent similar views of another form of construction. i l

In the machine' frame/1 is mounted the driving shaft 2 by Ywhich the various devices of the machine are set in motion byvmeans hereinafter described. i

The wire afto he worked, which serves for the .insertion of the tuft 7) into the previously .prepared brush-block n is wound upon a loosely rotatable reel 3I and runs through a ',clamping` device over a guide roller 4to ,the

usual needle Thisis fastened in a hori-' zontally movable head 6,l whichky 'reciprocated by the driving shaft 2 by means'of the eccentric disk 7 and a rod 8 as well as a lever 9. In order to present the wire a from theguide roller 4 before the needle 5 (Fig. 5), there is provided a roller 10 which is carried for instance by an angle lever 11, which by the aid of an eccentric is driven .by the driving shaft 2 through the medium of a double-armed lever l2 which turns Vabout a pin 13.

According to the present invention the guide roller 4 is movably arranged and for this purpo-se is mounted upon a swinging lever 14, which for instance swings about the same point of rotation as the angle lever 11. The position of rest of the lever 14 is determined by a. pin 16 against which it is pressed by a spring 17.

Wire clamps are also provided one of which only comes into operation at the com- .mencement of work (Figs. 1 and 6), while theother prevents any unwinding of the w1re a from the reel 3 as-soon las the wire in front of the needle is drawn taut (Fig. 5). The first clamping device (Figs. 1 and 6) consists of a lever arm 18 which turns about a pin 19 and is mounted eccentric to the pivot of the lever. 11,'` so that the roller 10 "during its movement runs upon the arm 18 and causes it topturn. .By this means the arm 18, by yits other part 20 formed as a clamping jaw presses the free end d of the wire vt" looped through the brush block o against an abutment 2l of the machine frame 1, so that the free end l ofthe wire a is held fast during vthe inserting of the wire with tuft b (Fig. (i). Upon swinging the roller 10 the wire tis brought into a slit 22 of a-curved plate 23 through which also passes the needle 5. (Figs. 2 and 5). Now in. order to prevent unwinding of the wire from/reel 3 upon drawing taut the wire lying in front ofl the needle 5, the second clamping .device is provided which .works .with each step of thev operation (Figs. 1

and 5). This consists first of the rigid jaw .24 of a lever 25 which turns about an axis V26, further of a movable jaw 27` which cooperates with the jaw24 and mounted.. upon the lever 25' turns about a pin 28.

The clamping device is now set'in motion by the driving shaft l2. For this purpose a double lever 29 is provided which turns about the fpin 13 and is; actuated by the driving shat This 'double Y -lever29is connected with a lever 30 which 2,y by means of an? eccentric.

y l is, mounted on the same axis 26 as a lever 31.

A is braked by a band brake 108.

Upon insertion the wire a is first held ,fast by the clamp 24, 27 and drawn by the lever 25 by `means of the llever 30, 31 and the eccentric operated lever 29. The lever 25 then remains in the end position until lever 11 and roller 10, noW .coming into operation have drawn the tuft into the brushblock by means of the eccentric operated lever 12.A Through the increase in tension thus caused the roller 4 and the lever 14 are, according to the degree of the tension, set more or less in motion toward the needle and against the -action of the spring 17 andthus compensate the wire tension. -Only when n the insertion is ended does the lever 25 return by means of lever 31, lever 30 and veccentric operated lever 29, while'the'wire clamps 24, 27 release the wire a so that the spring 17 of the'lever 14 can relax. The lever 11 and the roller 10 remain stationary in the end position. One end portion of the leverll is shown in Fig. l and the other in Fig. 6. The roller 10 draws the Wire a from the reel 3 but not the supply of wire, found above the needle which is necessary when inserting the needle 5 -into the brush block c and the loop maker so as to prevent breaking of the wire and needle which occurs with ashort wire. Hereupon the lever 11 with roller 10 returns and the insertion is finished. Thus the roller 10 vpresents the Wire a before the needle 5 provided with open eye` 33. If the needle now advances it takes with it the Wire a and lcarries it into the head 34, 35 of aJ gripping pliers 36. Here the wire is first spread (Figs. 1,' 2;? 9 and 10) and for this purpose a spreading device s provided which con-. sists of tapered jaws 38 and is formed like pliers, being held in the closed position vby a sprin 39 (Fig. 1). The jaws 38 -are carried y -a slide arin 40, which is moved forward bythe driving shaft 2 by means. of a lever 41 and eccentric. Hereupon the I pointsof the jaws 38 enter the loop of the wire a and simultaneously the jaws 38 en- Acounter'a stop 43 of a suitable Wedge shape Which spreads them apart and hence widens the loop so that a tuft b can be inserted in same. This last device proceeds in known manner and for this purpose the .brush material contained in a receptacle is dividedm into tufts and is insertedby carrying pliers: having plier parts 45,46 into the gripping heads 34, 35 ofthe gripping pliers 36. The division of the tufts is e ected in the follow- (Figs. 1,.-3, 12 and' 13) :'Into projects from below a disk -47 which is rigld upon an axle 48 mounted in a frame 53. Upon this axle 48 driving shaft 2, by means of arod 50and a double lever 51 which turns about a pin r52, the lever arm 49 being driven by this .eccentric. Further the frame 53 is'provided with an ecentrically formed groove 54 in which slides a pin 55 the arm 56 of which turns about a pin 57 of the disk 47. Upon'the pin 57 is also provided an arm 58 and the lend of thearm 58 is formed as a finger 60 While the disk 47 has a depression 59, so that upon rotation of the Adisk 47 the finger 60 seizes as much brush material as the depression 59- can receive. Then the disk47 is turned backy so that the linger 60 and the depression 59 lie outside the receptacle 44.

Pliers 45, 46 are provided which serve to grasp'the tuft divided oft by the dividing device. and to carry it to the above-mentionedhead 34, 35 of the gripping pliers 36.y

The two plier parts 45, 46 are so arranged in relation to each other that upon opening' with the ends of-a double-armed lever 61 which turns about a pin 62, so that upon the turning of the lever 61 one plier part 45 is moveddownward and the other plier part,l 46 upward, whereby a rapid opening of the pliers 45, 46 is obtained and a slight movement only is necessary (Figs. 17 and 18). Now in order to swine' the lever 61.and to open the pliers 45, 46, the following device is provided: Upon the driving shaft 2 is placed an eccentricl 63 the rod-`64 of' whichshifts a lever 66 turning about a pin l65, which leverengages and raises a lever 67, whereupon the latter turns about a pin r69 against the action of a spring 68 and with its fork end 70 simultaneously raises a -double connectionv 71. The ,latter is situated uponl a prolonged part 72gof .one of the two plier parts 45 or 46 so t upon working the eccentric '63 the pliers 46 are opened .A accomplishes thenecessary movement of the .e'arrying pliers. The seized tufts b when being inserted brush over a comb 78 so that S-tiiey are simultaneously cleaned. One head part 35 of the gripping pliers 36 is longer A than head part 34 (Fig. 2) and the prolonged head part 35 serves to guide the tnft conveyed by the pliers 45,-46 into the head parts 34, 35.

. The movement of the pliers-45, 46 from the receptacle 44 to the heads 34, 35 is ef-vt is provided a. lever arm 49 which is confected by the driving shaft 2 byl-means of a The heads 34, 35 serving to receive the tuft are formed as pliers and provided with the two plier arms which turn about pins 79 and are held closed by a spring 80, while they strike a pin 81 which prevents complete closing of the gripping pliers. The

eads 34,. 35 'are given a funnel like form in 'which rests the benttuft unt-il its arrival before the brush block According to the present invention the gripping pliers 36 during the beginning of their movement are forcibly guided and for this purpose the grippingpliers are at the rear of their ends provided with guides 82 or the like opening toward the rear, which guides coperate with stationary pins 83, and hence the gripping pliers are soon released during their forward movement. The guides'82 are so formed that not only the gripping pliers 36 are opened as before to release the inserted tuft b, but according to the present invention these guides also lserve to cause the head part 3 5 to bend thetuft in the middlev as soon as it is drawn by the wire into the.

opened head parts 34, 35. This bending is effected by closing the gripping pliers 36 by means of the guides 82 and the pins 83.

When this has been done the gripping pliers 36 have moved so far forward that the pins 83 have left the guides 82 and the gripping pliers are only moved to the brush block c by the inserting wire a, while a spring 84 has a checking effect;

Due to the bending of the. tuft b the insertion of the tuft into the hole of the brush block 0 can be effected without difficulty and without causing fear of thewire breaking.

The gripping'pliers 36 are disposed on a slide 85 which slides in the machine' frame 1 (Fig. 1). fected by the drawin taut of the wire, and. against the action o the spring 84, which exerts `a retarding effect. lThe backward movement is effected by the driving shaft 2 through an eccentric and an angle-lever V86 which turn abouta pin 87, the forklike'end of the lever 86 engaging a pin 88 of the slide 85 and movingbackthe .gripping pliers 36.

In order to prevent y.the bristles of an inserted tuft 'b from entering between .the

heads 34, 35 and catching there'when the next tuft is inserted a protective cap 89 1s.` provided which covers the heads 34, 35 and with its pin 90 is mounted, axially displaceable, in a'bushing 91 of the machine frame 1.4

(Figs. 7l'and 8.) Thecap 89 is under the influence /of a spring 92 and the pin 90 is provided with a pin 93 which engages a lslanting groove 94 of the bushing 91, solthat The advance movement is ef# the cap 89 upon ressing against the brush block c is turned) simultaneously with the release of the tuft just inserted. Then apcording tothe present invention there v1s provided a device to convey the material-to the dividing device 47. The conveying device consists essentially of one or more conveyer belts 96 which run over guide rollers 97 and can be made more or less taut by a tension device consisting of an adjustlng member 99 provided witha roller 98. The

rnaterial is guided by means of the walls 44, 100, and 101, and in'order to move the material constantly forward, that is to. co-nduct it to the dividing device 47 known inv itself, the conveyer'belts 96 are provided.

with a number of catch pins 102 which seize the material and .carry it along, for which purpose the conveyer belt 96. with the-catch pins 102 are kept'in-motion by the impulse of a weight. It is self-evident that the driving of the conveyer belts can be also effected by the driving shaft v2. In order that the catch pins 102 may release lthe material at the delivery point and be out of the reach of the workv parts of the dividing device 47, the catch pins 102 are made yielding, to which end they are rotatably arranged on theconveyer belts 96. The belts have portions 104 cut away so that if necessary the catch pins 102 can be turned back completely. In order `to "prevent thecatch' pin 102 from swinging backward when convey-v ing the material the wall 100 is provided upon which slide the belts'96 with the catch pins 102. At al suitable point this wall 100 has a cut away portion 105 so that there the cat)ch pin 102 can turn back (Figs. 19 and 20 g i Insteadof a conveyer belt 96 a conveyer chain 106 can be used just as well, while by dispensing with some chain lnembers the necessary opening 107 for the passage of the catch pin 102 is procured (Figs. 21 and 22).

The operation is as follows: After the operator has pressed the wire coming from reel 3 between" the jaws 24an'd 27 of the vlever 25, carried it around guide rollers 4- and 10 vand hasl carried it from below into the eye 33 of the needle 5 projecting in its end position, he leads the free end. (lof thev wire into thel jaws 20, 21, which are formed by the lever 18v and the machine frame 1,

and, `after he has attached the brush block c as indicated in Fig. A1, he starts the machine. The needle 5 advances and, since the -free end. d of the wire is .clamped fast, wire is drawn 'from the reel 3, andthe wire looped over the needle is carried into the tapered jaws 38 of the yspreading device which opens the wire into a loop, whereupon the needle is drawn back. Hereupon .the parts 45, 46

'place in the loop (Figs. 9, 10, 15 and 16) the tuft b divided from the rleceptacle 44 and bend it into U- form by n eans of the pro- Then the gripping pliers 36 open,'while the longed part of the. head 35 of the gripping 'pliers 36. Simultaneously thel jaws 38 return to their position of rest. The wire, held ,by the jaws 20, 2l, 24, and 27, is now ,drawn taut by the -roller 10'by means of the lever 11. Hereupon the tuft b is drawn between the heads 34, 35 between which it remains until the latter strike the' brush b lock c.

tuft is being drawn by the wire into the brush block. The lever 25, pliers 45, 46 and gripping pliers 36 now return to their position of rest. The operator/now draws the free end d of the Wire from the clamp 20, 21 and places the nextV hole of the brush block c over the projecting needle point, again starts the machine and the operation is repeated, while the needle 5 carries the wire,

' brought over'the needle from the roller 10,

to the jaws 38. The operator now has only to move the brush block c from hole to hole from below upward, and to start the machine. As shown in Fig. 11 the ends of the Wire of a finished brush are loopedseveral times around the inserted wire whereby a suiicient fastening is obtained.

I declare that what I claim is 1. .In a machine for inserting tufts into brush blocks, theI combination of means `for forming a wire loop and insertingA therein a bristle tuft, and for drawing the loop to insert the tuft ina brush block, of a pair of f the brush block to feed tufts thereto, and

having gripping heads closing lengthwise of a tuft in the loop, and means for closing the gripping heads jupon a tuft, whereby the tuft is forcibly bent beforeits movement into the brush block. y

2. In a machine for inserting tufts into brush blocks, the combination/of a pair of A movable gripping pliers comprising movable mem-bers carrying gripping heads and having rearwardly opening guide-slots; carrying pliers for feeding tufts to the gripping l1eads;'tixed pinsl disposed in said slots; and means for forcing said members forward to cause said pins to engage said slots and.

cause said grlpping heads to bend said tufts.'

In a machine fo-r insertix'ig tufts into brush blocks, the combinationi of means for supporting a brush block, means for feeding loops of wire -through the brush blocks; gripping pliers having gripping heads disposed about said loops; means for feeding' tripping pliers bodily movable to and from maar@ tufts to the loops; means for causing said gripper members to close upon and bend said ltufts after they are fed to the loops; mea-ns for grasping said /wire and .drawing the loops back lnto the brush blocks; and a spring mounted displaceable guide roller be-I tween the brush blockj and the `drawing means and over which said Wire is passed.

4. vIn a machine for inserting tufts into brush blocks, the combination of means for supporting a brush block; means. for passing Wire loops through the brush block and drawing'the same back into the brush block, said means comprising levers, a resilient member betweensaid'levers; and means for feeding tufts to the loo-ps.,

i o. In amachine for mserting tufts into brush blocks, the combination of means for supporting a brush block; a .pulling lever carrying a wire cl-amping device and adapted to move remote fro-m the brush tof draw the wire and remain stationary in its remote position; and a lever carrying a spring moiunted roller and adapted to complete the insertion by the roller.

6. In a machine for inserting tuftsintov brush blocks, the combination of means for supporting a brush block; a pulling lever carrying a wire clamping devicel and adapt` ed to move away from the brush to draw the wire and to remain stationary at lthe limit of its movementv away from the brush; and a lever carrying a spring mounted roller and l' adapted to move to complete the insertion by the roller; and means for causing said lastnamed lever to remain at. the end of its movement until said wire clamping. device has released the wire and the spring action 5 ceases.

7. Ina machine for inserting tufts into brush blocks, the combination of means for supporting the brush block, means for passing loops of wire therethrough, and feeding y 

